Apparatus for sorting and cleaning grain.



H. SEGK.

APPARATUS FOR SORTING AND CLEANING GRAIN. APPLIOATION FILED SEPT. 13,1910.

1,036,014, Patentefl Aug. 20, 1912.

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COLUMBIA PLANOGRAPRII C0" WASHINGIDN-D- Ca heavier grains from beingHEINRICH SECK, or nnnsnnn, GERMANY.

APPARATUS FOR SORTING AND-CLEANING GRAIN.

Specification of Letters Patent.

Patented Au 20, 1912.

Application filed September 13, 1910. Serial No. 581,758.

To all whom it may concern: 4

Be it known that I, HEINRICH Seen, a subject of the King ofSaxony,residing at Dresden, in the Kingdom of Saxony and German Empire,have invented new and useful Aparatus for Sorting and Cleaning Grain, ofwhich the following is a specification.

The present invention relates to apparatus for cleaning and sortinggrains of all kinds.

According to my invention the grain arranged on the inclined bottomsurface of a yieldingly mounted channel is dammed up and by means of ashaking movement the specifically lighter grains are separated from theheavier grains. The shaking movement, causes the grains to becomeclassified in accordance with their specific weight, in such a mannerthat the heavier grains are forced to the sides and pass downward, whilethe lighter grains collect in the middle of the passage and rest orfloat on the top. Consequently, in the case of mixtures of grains ofvarious specific weight the specially heavier kinds of grain slide tothe lowest part of the yieldingly mounted channel owing to the shakingmovement and simultaneously the specifically lighter kinds of grain areforced upward so that the lighter grains collect separately from theheavier grains and can be delivered separately.

Heretofore, the classifying and separation of grains has been efiectedby giving jerks or blows to the surfaces carrying the material to besorted or separated, these jerks causing all the grains to move in agiven direction, the lighter grains being projected farthest by a blowof given strength. This known method of sorting grains is defective,

however, because the separation of the different kinds of grain is veryincomplete, as it is impossible to prevent specifically driven forwardand carried away with the lighter grains. In accordance with the presentinvention it is possible to sort and separate the specifically lighterkinds of grain from the specifically heavier kinds very speedily,cleanly and certainly.

In the accompanying drawing, Figure 1 shows my new apparatus in sectionon the line AA in Fig. 2. Fig. 2 showing the apparatus in plan with theoperating gear. Fig. 3 shows the box-like receptacle in front elevationwith the front wall partly broken away, and Fig. 4; is a cross sectionthrough the receptacle on the line B-B in Fig. 2.

The apparatus for sorting and cleaning the grain consists of a box-likereceptacle a with the inclined bottom I) to which the grain'to be sortedand cleaned is supplied as far as possible near thefront on the upperend of the bottom 7) as indicated by the arrow I in Fig. 1. Thereceptacle a is yieldingly or movably mounted in a frame 0 and may beconveniently supported by springs d. The inclined bottom I) can beroughened or perforated sieve-fashion in any convenient manner. Thegrain may be conveniently supplied to the bottom of the receptacle bymeans of a hopper (not shown) the quantity so supplied being adjustableaccording to requirements by means 'of rollers or slides in a well-knownmanner. The receptacle a is given a reciprocating lateral shakingmovement by means of a crank gear 6. The receptacle a widens out towardthe discharge end for the lighter grains (Fig. 2) in order to directthese lighter grains simultaneously forward and outward. The dischargeend of the receptacle for the heavier grains. which is constituted atthe deepest part of the inclination of the bottom I) is limited byadjustable slides which effect a dammingup of the heavier grains whichslide down: ward. In the construction illustrated. two slides f and];spaced apart, are provided; they are guided in the side walls of thereceptacle a and can be fixed in any desired position. The slides f andg are provided with apertures for the passage of the sorted heaviergrains. In the slide 7 the passages h are arranged immediately above thebottom 6 of the receptacle a against the two side walls of thereceptacle, while in the slide 9 the discharge opening 2' is arranged ata certain distance from the bottom Z) between the two openings h in theslide 7. By adjusting the slides f and g vertically, the passages 71 canbe made wider or narrower as desired, whereby the grains supplied to thebottom I) of the receptacle a are dammed-up to a greater or less extent.The slide 9 with the opening 2' permits of regulating the quantity ofthe sorted, specifically-heavier material being discharged. while theslide 7 with the lateral apertures it, according to the increase ordecrease in their size by adjusting the said slide vertically, regulatesthe damming up or accumulation of the grain supplied.

is is the discharge opening for the sorted specifically-heavier materialwhich is collected at n and thence conducted through pipes, channels,worms or the like to some suitable place. The discharge of the sorted,specifically-lighter grains takes place in the direction indicated bythe small arrow freely at Z at the highest part of the inclined bottomZ2 and no special adjustment is necessary here.

m is ahopper-shaped receptacle for collecting the sorted lightermaterial whence it? is conducted to another sorting receptacle a; forfurther cleaning or, if this is not necessary, to a suitable collector.As shown in the drawing, either one receptacle a may bef provided orseveral receptacles, the second? beside, behind or under the first. Whena? number of receptacles are providedthey are preferably suppliedsimultaneously with the material to be sorted. i The separation of thespecifically lighterj grains of barley for. instance from the, heaviergrains of wheat, is caused b'y'thef I shaking movement imparted to therecepta-f cle or receptacles. Owing to this shaking;

movement, the grains collect in front of'the; 'slide f, according to theadjustment of the! latter and the resultant enlargement or reduction ofthe passages in, and become classi-j -fied in accordance with theirspecific weight.

in such a'manner that the heavler grainsofwheat are driven toward theside faces off the receptacle or receptacles a and pass; downward to thelowest part while the lighter grains of barley are forced toward, themiddle of the channel of the receptacle; where they collect and riseupward. The? lighter barley grains thus separated are discharged fromthe receptacle at its highestv part at Z in the direction indicated bythesmall arrow, while the heavier wheat grains first of all pass throughthe lateral openings h in the slide f (as indicated in Fig. 2 by thearrows) and then leave the receptacle a through the opening 2' in theslide 9 in the: direction indicated by the curved arrow. In

fected. Owing to the arrangement of the inlet for the grain into thereceptacles a in proximity to its upper part or highest end, the lightergrains are from the first prevented from passing rearward and becomingde.

posited directly in front of the slide The inclination of the bottom I)in the longitudinal plane of the receptacle a is adjustable so that thisinclination of the bottom I) can be adjusted to correspond with thequality of the materialto be sorted.

What I claim is 1. Apparatus for sorting and cleaning grain, comprisinga receptacle having an inclined bottom with converging sides reducingthe width of the bottom surface toward one end, a vertically adjustableslide guided in the sides of the receptacle near its wider end, saidslide having openings near the bottom of said receptacle, adapted to beincreased or decreased by the adjusting of said slide, andmeans forsubjecting the receptacle to vibrations. v,

2. Apparatus for sorting and cleaning grain, comprising a receptaclehaving an inclined bottom with converging sides reducing the width ofthe bot-tom surface toward one end, two slides spaced apart and disposedcrosswise near one end of the receptacle, one slide being arranged so asto cause the heavier. grains to be dammed up and the other slide beingarranged to control the amount of the heavier grains being dischargedfrom said receptacle, each slide being provided with openings, and meansfor subjecting the receptacle to vibrations.

Intestimony whereof I have signed my name to'this specification in thepresence oftwo subscribing witnesses.

HEINRICH SEOK.

Witnesses BERNHARD GRAET, WOLDEMAR HAUIT.

copies of this patent may be obtained for five cents each, by addressingthe Commissioner of. Patents,

' Washington, D. 0.?"

